package core:engine/component

Source

button :: struct {
	using _:               engine.itransform_object,
	area:                  linalg.Area($T=f32),
	ref_viewport:          ^engine.viewport,
	state:                 button_state,
	pointerIdx:            runtime.Maybe($T=u8),
	button_up_callback:    proc(self: ^button, mousePos: [2]f32),
	button_down_callback:  proc(self: ^button, mousePos: [2]f32),
	button_move_callback:  proc(self: ^button, mousePos: [2]f32),
	pointer_down_callback: proc(self: ^button, pointerPos: [2]f32, pointerIdx: u8),
	pointer_up_callback:   proc(self: ^button, pointerPos: [2]f32, pointerIdx: u8),
	pointer_move_callback: proc(self: ^button, pointerPos: [2]f32, pointerIdx: u8),
}

button_state :: enum int {
	UP, 
	OVER, 
	DOWN, 
}

button_vtable :: struct {
	using _:       engine.iobject_vtable,
	button_up:     proc(self: ^button, mousePos: [2]f32),
	button_down:   proc(self: ^button, mousePos: [2]f32),
	button_move:   proc(self: ^button, mousePos: [2]f32),
	pointer_down:  proc(self: ^button, pointerPos: [2]f32, pointerIdx: u8),
	pointer_up:    proc(self: ^button, pointerPos: [2]f32, pointerIdx: u8),
	pointer_move:  proc(self: ^button, pointerPos: [2]f32, pointerIdx: u8),
	__over_exists: proc(self: ^button) -> bool,
	__down_exists: proc(self: ^button) -> bool,
	__up_exists:   proc(self: ^button) -> bool,
}

image_button :: struct {
	using _:      button,
	up_texture:   ^engine.texture,
	over_texture: ^engine.texture,
	down_texture: ^engine.texture,
}

shape_button :: struct {
	using _:        button,
	up_shape_src:   ^shape.shape_src,
	over_shape_src: ^shape.shape_src,
	down_shape_src: ^shape.shape_src,
}

button_down :: proc(self: ^button, mousePos: [2]f32) {…}

button_move :: proc(self: ^button, mousePos: [2]f32) {…}

button_pointer_down :: proc(self: ^button, pointerPos: [2]f32, pointerIdx: u8) {…}

button_pointer_move :: proc(self: ^button, pointerPos: [2]f32, pointerIdx: u8) {…}

button_pointer_up :: proc(self: ^button, pointerPos: [2]f32, pointerIdx: u8) {…}

button_unregister :: proc(self: ^button) {…}

button_up :: proc(self: ^button, mousePos: [2]f32) {…}

image_button_down_exists :: proc(self: ^image_button) -> bool {…}

image_button_init :: proc(
	self:           ^image_button, 
	up:             ^engine.texture = nil, 
	over:           ^engine.texture = nil, 
	down:           ^engine.texture = nil, 
	colorTransform: ^engine.color_transform = nil, 
	vtable:         ^button_vtable = nil, 
	ref_viewport:   ^engine.viewport = nil, 
) {…}

image_button_over_exists :: proc(self: ^image_button) -> bool {…}

image_button_up_exists :: proc(self: ^image_button) -> bool {…}

shape_button_down_exists :: proc(self: ^shape_button) -> bool {…}

shape_button_init :: proc(
	self:           ^shape_button, 
	up:             ^shape.shape_src = nil, 
	over:           ^shape.shape_src = nil, 
	down:           ^shape.shape_src = nil, 
	colorTransform: ^engine.color_transform = nil, 
	vtable:         ^button_vtable = nil, 
	ref_viewport:   ^engine.viewport = nil, 
) {…}

shape_button_over_exists :: proc(self: ^shape_button) -> bool {…}

shape_button_up_exists :: proc(self: ^shape_button) -> bool {…}